The 2025 USIM breach turned SKT's subscriber base into an at-risk base overnight — churn waves, SIM-replacement logistics and compensation questions at a scale no human contact center absorbs; an agentic frontline that reaches every wavering subscriber with accurate, policy-bounded conversations is the retention machine the recovery demands, and it fits SKT's own declared AI-company pivot.
SK Telecom is Korea's largest mobile carrier, which in 2025 suffered a major breach of USIM-related data, leading to a nationwide free SIM-replacement program, executive apologies and government investigation.
Public factThe breach triggered substantial subscriber losses to KT and LG U+, with cancellation-fee waivers expanding the churn window and intense public scrutiny of SKT's response.
Public factSKT has publicly repositioned as an 'AI company' — in-house LLM work, AI data centers and global telco AI alliances — so AI-powered recovery is on-strategy, not off-brand.
Public factBreach-era contact volume (SIM swaps, security questions, compensation, cancellations) likely dwarfs normal service load and remains elevated through remediation.
Seller hypothesis — validateWin-back economics are unusually favorable: churned subscribers left from fear, not network dissatisfaction — a trust-repair conversation can recover them.
Reasoned inferenceAny vendor pitch must respect SKT's in-house AI pride: position as best-of-breed frontline execution, benchmarkable against internal builds.
Reasoned inferenceValidate with the account team before outreach: Current state of the churn window, waiver policies and at-risk cohort sizes · Internal AI (in-house LLM) deployments already in the contact center · Procurement openness to non-Korean AI platforms post-breach · PIPA and regulator constraints on automated outbound to breach-affected customers
Strong internal engineering — sell infrastructure, models, governance, or selected capabilities
Evidence: SKT's declared pivot to an 'AI company' is public and substantive — its own A.X LLM family, AI data centers and global telco-AI alliances — so it will build core AI capability internally; the winnable motion is a benchmarkable frontline deployment on the retention and breach-recovery queues where speed matters more than platform pride.
Why they won't build the full stack: The post-breach recovery clock does not wait for internal platform maturity: reaching the full at-risk base with policy-bounded, fully-logged conversations is a production delivery problem SKT can run alongside its in-house stack — best-of-breed execution now, benchmarked head-to-head against internal builds.
The 2025 USIM data breach drove subscriber losses, a nationwide free SIM-replacement program, executive apologies and regulatory action — with churn-window economics discussed openly in the Korean market.
GTM implication: Lead with the win-back sprint: churned-subscriber lifetime value versus cost-per-conversation is the cleanest ROI in the account while the recovery remains a board priority.
SKT has publicly repositioned as an AI company — in-house LLM investment, AI data centers and telco AI alliances — making AI-powered recovery on-strategy.
GTM implication: Frame the deployment as SKT's AI thesis made visible in customer recovery, and always as benchmarkable alongside internal builds — never as platform surrender.
| Workflow | Why it matters here | Value | Complexity | Speed | Channels |
|---|---|---|---|---|---|
Churn-risk retention and win-back outreach Full at-risk base coverage with policy-bounded offers; save and win-back rates attributed weekly. | Every week of the extended churn window loses subscribers whose lifetime value dwarfs the cost of one good conversation. Friction today: Save desks are capacity-bound; outreach lists outrun human dialing capacity by an order of magnitude. | VoiceSMSKakaoTalk | |||
Security and SIM-replacement service desk Accurate, consistent security conversations at unlimited capacity; retail queues decompress. | Breach-related questions are the trust frontline; slow or inconsistent answers re-damage the brand daily. Friction today: SIM-swap logistics, eSIM reissue and security-status questions flood queues with long waits at retail and phone. | VoiceApp chatKakaoTalk | |||
Billing and plan service line Routine service automated; human specialists concentrate on retention and security. | Business-as-usual service still runs underneath the crisis; automating it frees human capacity for trust-sensitive cases. Friction today: Routine billing and plan changes compete for agents consumed by breach-related volume. | VoiceApp chat |
Voice & channel orchestration, telephony, conversational execution, session/state, routing, integration build. Capability coverage validated during implementation.
API access to these systems is the critical-path dependency.
Identity-bound sessions, policy-bounded actions, 100% audit logging, human approvals at defined points, in-tenant intelligence.
All figures are modelling estimates from the labeled inputs above — nothing here is customer-provided yet. The pilot's first job is replacing these assumptions with SK Telecom's measured baseline. Package price covers implementation only; recurring usage billed separately.
Why this package for SK Telecom: Retention outreach plus breach-related service surge are two urgent, well-bounded workflows; SKT's in-house AI ambitions make a scoped, benchmarkable deployment more winnable than a platform transformation.
Packages cover implementation and integration only. Recurring costs are billed separately: Tilicho Labs platform usage (~$0.15/call-min indicative, usage only), Google Cloud consumption, telephony/carrier charges, managed operations, and support & optimization. No package includes unlimited usage.
“You've told Korea SKT is an AI company; deploying agentic AI to win back every wavering subscriber is that claim made visible — recovery executed with the very capability you're betting the company on.”
“Run this as a benchmark: a Gemini-powered frontline on the retention queue, measured head-to-head against internal builds — best-of-breed pragmatism, not platform surrender.”
“SIM-replacement logistics plus churn defense plus normal operations exceed any staffing plan; elastic agentic capacity is the only arithmetic that covers all three at once.”
“Your at-risk list is bigger than your dialer capacity by 10x; an agent that reaches everyone with approved offers turns your save rate from a sample into a population metric.”
“Post-breach, every customer conversation is regulatory evidence: 100% logging, approved-script enforcement, PIPA-aligned processing and human gates on compensation — stronger control than a surge-hired human floor.”
“Churned-subscriber lifetime value against cost-per-conversation is the easiest ROI math in the account; the pilot quantifies save-rate lift in weeks, with usage-based run cost.”
Written from this account's own research — the strategic signal, the capability gap, the entry workflow, and the modelled economics — not a mail-merge template. Pick the moment and the persona, edit anything, then copy or open in your mail client.
Customer-safe by construction: drafts are composed only from customer-facing fields. Account tier, build-vs-buy classification, priority score, internal routing, and partner-commercial detail are not inputs to the composer, so they cannot appear in a draft. Money figures are always framed as modelled from the customer's own volumes. Read before sending — you own what goes out.
Korea's #1 mobile carrier is in a trust-and-retention fight after its 2025 USIM data breach triggered mass churn, regulatory action and free-SIM-replacement logistics at national scale — the region's most urgent conversational-volume problem.
War-room proposal to retention leadership: a 6-week win-back sprint on a defined churned cohort, measured on recovery rate versus the current SMS-and-dialer baseline.
Entry: Churn-risk retention and win-back outreach · Scale package · 10–14 weeks to production across priority workflows. Human fallback throughout; success thresholds agreed before build.
Start the pursuitResearch-based priority-account universe assembled from public information, market scale, communication volume, and solution fit. This is NOT an authoritative list of top Google Cloud customers; existing Google Cloud relationships are noted only where publicly reported. Validate every account with the account team before outreach.